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Finding the Fourth Proportional to 8,896.67, 13,349.15 and 3,965.79

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Solution

The fourth proportional to 8,896.67, 13,349.15 and 3,965.79 is: 5,950.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,896.67 : 13,349.15 = 3,965.79 : x
  2. Step 2: Convert to fraction form
    8,896.67/13,349.15 = 3,965.79/x
  3. Step 3: Cross multiply
    8,896.67x = 13,349.15 × 3,965.79
  4. Step 4: Simplify right side
    8,896.67x = 52,939,905.75
  5. Step 5: Solve for x
    x = 52,939,905.75/8,896.67
  6. Step 6: Final answer
    x = 5,950.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.